At this point, your attorney has fifteen (15) days from the date on the track assignment notice to serve your complaint upon your employer. Once your employer has been served, it has thirty-five (35) days to file an answer with the court.
The Sheltie has a lifespan of 12 to 14 years and may be prone to minor concerns like patellar luxation, allergies, hypothyroidism, Legg-Perthes, canine hip dysplasia, hemophilia, trichiasis, cataract, Collie eye anomaly, and progressive retinal atrophy, or a major one like dermatomyositis.
They can live up to 20, but that is extremely rare. I have a sheltie and she is about ten and she sounds like the spitting image of your dog in activity. It isn't unusual for them to start slowing down at that age.